Patents by Inventor Tracy D. Sigfrid

Tracy D. Sigfrid has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5865180
    Abstract: In one embodiment, a shoulder, arm or hand cushion includes a plush fabric piece having dual overlapping opposing pockets formed therein for a resilient pad such as a viscoelastic gel pad. The dual overlapping pockets define a tortuous path for escape of the viscoelastic gel pad to minimize loss of the viscoelastic gel pad. A neck having a size less than the size of the pockets combined or less than the size of the viscoelastic gel pad further minimizes loss of the viscoelastic gel pad. Yet the viscoelastic gel pad is easily removable by turning the plush fabric piece inside out to permit the plush fabric piece to be washed. The cushion may be used on the shoulder portion of a crutch.
    Type: Grant
    Filed: May 22, 1997
    Date of Patent: February 2, 1999
    Inventor: Tracy D. Sigfrid